Burkert Type 8619 User Manual download pdf (Page 13)

11

Description

Function Availability Formula Example for usage

Time dosing

Optional (see

chap. 8.10.4)

In a cooling tower, for example; used to

dose 2 products at fixed intervals or for

twice daily dosing scheduled over one

week.

The time dosing function can be combined

with an ON/OFF function on a conductivity

measurement only, in order to ensure

prebleed of the system. The "ON/OFF"

function must be configured and activated

before the time dosing function.

Volume

dosing

Optional (see

chap. 8.10.4)

Dedicated to cooling towers. Metering of

a specific volume of water and activation

of an actuator during a specific period in

order to add a product, and finally reset

the water volume to zero.

Concentration

Optional (see

chap. 8.10.4)

The concentration graphs for certain

compounds such as NaCl and H

2

SO

4

are memorised for use over the entire

concentration range.

Datalogger

on memory

card

Optional (see

chap. 8.10.4)

Option to memorise the variations in 1 to

16 values in a given time interval.

5.4. Functional diagram

INPUTS FUNCTIONS

1)

OUTPUTS

Digital inputs or frequency

inputs

Function 1 OUTPUT SIGNAL

Analogue inputs, current or

voltage

...

Transistor,

1 and 2

PWM or

on/off or PFM

or pulse

Conductivity sensor (2 or 4

electrodes)

Function 6

pH / Redox sensor

4-20 mA,

1 and 2

4-20 mA

Temperature sensor, Pt100 or

Pt1000

Display

Memory card

1)

active simultaneously

Type 8619

english

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